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  <title>Get elements by namespaceURI and localName</title>
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      <li style="float: left;"><a href="domelement.getelementsbytagname.html">« DOMElement::getElementsByTagName</a></li>
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    <li>Get elements by namespaceURI and localName</li>
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  <div id="layout-content"><div id="domelement.getelementsbytagnamens" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">DOMElement::getElementsByTagNameNS</h1>
  <p class="verinfo">(PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">DOMElement::getElementsByTagNameNS</span> &mdash; <span class="dc-title">Get elements by namespaceURI and localName</span></p>

 </div>
 <div class="refsect1 description" id="refsect1-domelement.getelementsbytagnamens-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>DOMElement::getElementsByTagNameNS</strong></span>(<span class="methodparam"><span class="type">?</span><span class="type"><span class="type">string</span><span class="type"></span></span> <code class="parameter">$namespace</code></span>, <span class="methodparam"><span class="type">string</span> <code class="parameter">$localName</code></span>): <span class="type"><a href="class.domnodelist.html" class="type DOMNodeList">DOMNodeList</a></span></div>

  <p class="para rdfs-comment">
   This function fetch all the descendant elements with a given 
   <code class="parameter">localName</code> and <code class="parameter">namespace</code>.
  </p>
 </div>

 <div class="refsect1 parameters" id="refsect1-domelement.getelementsbytagnamens-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>
    
     <dt>
<code class="parameter">namespace</code></dt>

     <dd>

      <p class="para">
       The namespace URI.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">localName</code></dt>

     <dd>

      <p class="para">
       The local name. Use <code class="literal">*</code> to return all elements within 
       the element tree.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>

 <div class="refsect1 returnvalues" id="refsect1-domelement.getelementsbytagnamens-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   This function returns a new instance of the class
   <span class="classname"><a href="class.domnodelist.html" class="classname">DOMNodeList</a></span> of all matched elements in the order in
   which they are encountered in a preorder traversal of this element tree.
  </p>
 </div>


 <div class="refsect1 changelog" id="refsect1-domelement.getelementsbytagnamens-changelog">
  <h3 class="title">更新日志</h3>
  <table class="doctable informaltable">
   
    <thead>
     <tr>
      <th>版本</th>
      <th>说明</th>
     </tr>

    </thead>

    <tbody class="tbody">
     <tr>
      <td>8.0.3</td>
      <td>
       <code class="parameter">namespace</code> is nullable now.
      </td>
     </tr>

    </tbody>
   
  </table>

 </div>


 <div class="refsect1 seealso" id="refsect1-domelement.getelementsbytagnamens-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="methodname"><a href="domelement.getelementsbytagname.html" class="methodname" rel="rdfs-seeAlso">DOMElement::getElementsByTagName()</a> - Gets elements by tagname</span></li>
   </ul>
  </p>
 </div>

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